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Fencer Intel
high 7.5

CVE-2017-3731 in the critical feed json

Truncated packet could crash via OOB read

published 2017-05-04 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-12848

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
57.3%
EPSS 57.3% chance of exploitation in 30 days, percentile 99%
public exploits
0
none known

Summary

If an SSL/TLS server or client is running on a 32-bit host, and a specific cipher is being used, then a truncated packet can cause that server or client to perform an out-of-bounds read, usually resulting in a crash. For OpenSSL 1.1.0, the crash can be triggered when using CHACHA20/POLY1305; users should upgrade to 1.1.0d. For Openssl 1.0.2, the crash can be triggered when using RC4-MD5; users who have not disabled that algorithm should update to 1.0.2k.

Patch / fix

  • nodejs node.js 4.7.3, 6.9.5, 7.5.0
  • openssl Debian 14, Debian 13, Debian 12 1.1.0d-1

debian advisories DEBIAN-CVE-2017-3731

  • openssl Ubuntu 14.04 LTS 1.0.1f-1ubuntu2.22
  • openssl Ubuntu 16.04 LTS 1.0.2g-1ubuntu4.6

ubuntu advisories UBUNTU-CVE-2017-3731

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • jbcs-httpd24-apr jboss core services 1 1.6.3-14.jbcs.el7
  • jbcs-httpd24-httpd jboss core services 1 2.4.29-17.jbcs.el7
  • jbcs-httpd24-mod_jk jboss core services 1 1.2.43-1.redhat_1.jbcs.el7
  • jbcs-httpd24-mod_rt jboss core services 1 2.4.1-19.GA.jbcs.el7
  • jbcs-httpd24-mod_bmx jboss core services 1 0.9.6-17.GA.jbcs.el7
  • jbcs-httpd24-mod_ssl jboss core services 1 1:2.4.29-17.jbcs.el7
  • jbcs-httpd24-nghttp2 jboss core services 1 1.29.0-8.jbcs.el7
  • jbcs-httpd24-openssl jboss core services 1 1:1.0.2n-11.jbcs.el7

red hat advisories RHSA-2018:2185RHSA-2018:2186RHSA-2017:0286

  • nodejs4 SLE Module for Web and Scripting 12, Enterprise Storage 4 4.7.3-14.1
  • openssl1 SLES 11-SECURITY 1.0.1g-0.57.1
  • openssl SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 +1 more 1.0.1i-54.5.1
  • openssl SLES for SAP 12 SP2, SLES for Raspberry Pi 12 SP2, SLES 12 SP2 +2 more 1.0.2j-59.1
  • nodejs6 SLE Module for Web and Scripting 12 6.9.5-7.1
  • openssl SLES 12-LTSS 1.0.1i-27.28.1

suse advisories SUSE-SU-2018:0112-1SUSE-SU-2017:0855-1SUSE-SU-2017:0495-1SUSE-SU-2017:0461-1SUSE-SU-2017:0441-1SUSE-SU-2017:0431-1

  • openssl-1_0_0 openSUSE Tumbleweed 1.0.2u-6.2
  • openssl-1_1 openSUSE Tumbleweed 1.1.1l-1.2

opensuse advisories openSUSE-SU-2024:11126-1openSUSE-SU-2024:11127-1

  • openssl Alpine 3.4, Alpine 3.3, Alpine 3.2 1.0.2k-r0

alpine advisories ALPINE-CVE-2017-3731

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • openssl Arch Linux 1.0.2.k-1
  • lib32-openssl Arch Linux 1:1.0.2.k-1

arch linux advisories AVG-154AVG-155

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-3731 updated cvss 5.9

openssl: Truncated packet could crash via OOB read

  • Red Hat Enterprise Linux 7 OVMF Red Hat Enterprise Virtualization 3 mingw-virt-viewer, mingw32-virt-viewer, mingw64-virt-viewer Red Hat JBoss Enterprise Application Platform 6 openssl
    affected: no fix planned “Will not fix”
  • Red Hat JBoss Enterprise Web Server 2 openssl
    affected: no fix available
  • Red Hat JBoss Web Server 3 openssl
    affected: no fix available “Fix deferred”
  • Red Hat Enterprise Linux Client (v. 7) openssl 1.0.1e-60.el7_3.1, openssl-libs 1.0.1e-60.el7_3.1 Red Hat Enterprise Linux Client Optional (v. 7) openssl-perl 1.0.1e-60.el7_3.1 Red Hat Enterprise Linux ComputeNode (v. 7) openssl 1.0.1e-60.el7_3.1, openssl-libs 1.0.1e-60.el7_3.1 Red Hat Enterprise Linux ComputeNode Optional (v. 7) openssl-perl 1.0.1e-60.el7_3.1 Red Hat Enterprise Linux Desktop (v. 6) openssl 1.0.1e-48.el6_8.4 Red Hat Enterprise Linux Desktop Optional (v. 6) openssl-perl 1.0.1e-48.el6_8.4
    +10 more products
    Red Hat Enterprise Linux HPC Node (v. 6) openssl 1.0.1e-48.el6_8.4 Red Hat Enterprise Linux HPC Node Optional (v. 6) openssl-perl 1.0.1e-48.el6_8.4 Red Hat Enterprise Linux Server (v. 6) openssl 1.0.1e-48.el6_8.4 Red Hat Enterprise Linux Server (v. 7) openssl 1.0.1e-60.el7_3.1, openssl-libs 1.0.1e-60.el7_3.1 Red Hat Enterprise Linux Server Optional (v. 6) openssl-perl 1.0.1e-48.el6_8.4 Red Hat Enterprise Linux Server Optional (v. 7) openssl-perl 1.0.1e-60.el7_3.1 Red Hat Enterprise Linux Workstation (v. 6) openssl 1.0.1e-48.el6_8.4 Red Hat Enterprise Linux Workstation (v. 7) openssl 1.0.1e-60.el7_3.1, openssl-libs 1.0.1e-60.el7_3.1 Red Hat Enterprise Linux Workstation Optional (v. 6) openssl-perl 1.0.1e-48.el6_8.4 Red Hat Enterprise Linux Workstation Optional (v. 7) openssl-perl 1.0.1e-60.el7_3.1
    fixed: vendor fix RHSA-2017:0286
  • Red Hat JBoss Core Services
    fixed: vendor fix RHSA-2018:2187
  • Red Hat JBoss Core Services on RHEL 6 Server jbcs-httpd24-apr 1.6.3-14.jbcs.el6, jbcs-httpd24-httpd 2.4.29-17.jbcs.el6, jbcs-httpd24-apr-util 1.6.1-9.jbcs.el6, jbcs-httpd24-nghttp2 1.29.0-8.jbcs.el6, jbcs-httpd24-mod_ssl 2.4.29-17.jbcs.el6, jbcs-httpd24-openssl 1.0.2n-11.jbcs.el6, +25 more
    fixed: vendor fix RHSA-2018:2186
  • Red Hat JBoss Core Services on RHEL 7 Server jbcs-httpd24-apr 1.6.3-14.jbcs.el7, jbcs-httpd24-httpd 2.4.29-17.jbcs.el7, jbcs-httpd24-apr-util 1.6.1-9.jbcs.el7, jbcs-httpd24-nghttp2 1.29.0-8.jbcs.el7, jbcs-httpd24-mod_ssl 2.4.29-17.jbcs.el7, jbcs-httpd24-openssl 1.0.2n-11.jbcs.el7, +25 more
    fixed: vendor fix RHSA-2018:2185
  • Red Hat Enterprise Linux 5 openssl, openssl097a Red Hat Enterprise Linux 6 openssl098e Red Hat Enterprise Linux 7 openssl098e Red Hat JBoss Enterprise Application Platform 5 openssl Red Hat JBoss Enterprise Web Server 1 openssl
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-19-155-01 updated cvss 7.5

PHOENIX CONTACT PLCNext AXC F 2152

  • Phoenix Contact AXC F 2152 2404267 version 1.x, 1046568 (Starterkit) version 1.x
    affected: vendor fix, mitigation “Phoenix Contact recommends affected users update to firmware release 2019.0 LTS or later, update to PLCNext Engineer release 2019.0 LTS or later, and apply the following specific mitigations below:” phoenixcontact.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

57.32% chance of exploitation in the next 30 days, higher than 99% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • OpenSSL OpenSSL

Classification

Weakness
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.